We have a warehouse with no access to cool air coming in.

Train tracks, gun clubs, air strips, double-yellow lines, shopping plazas, school zones, flood zones, cemeteries, landfills, etc. 

Recently I have had several inquires about AIR BNB Properties. The concept is terrific, and I know several property owners who are experiencing great returns on their Air BNB Properties. There is an overwhelming deman...

At most a ductless fan will circulate air through a filter that might (or might not) help with smells.

There is some water damage from a built in air conditioner and the inside of the house needs to be painted,  carpets pulled,  wallpaper removed in the kitchen and a bedroom,  hardwood floors refinished,  and possibly the dated kitchen updated with new cabinets, appliances and counters.  

I felt like the heat loss study was such a pain that I should look into a central air and furnace system. 

   Wow, that seems way high to me. 117 houses puts you in pretty rarified air as far as RE investors goes.

Air b&b?  

Air BNB is fine if the property is on your schedule E and you are claiming your income. 

Can I deduct the cost of buying air conditioners and fans from rent if my landlord doesn't want to fix our central AC/heat unit?